Lecture Notes || SNS Courseware

Subject Details

Dept : IT

Sem : 4

Regul : 2019

Faculty : Daze Thomas

phone : NIL

E-mail : daze.t.aids@snsce.ac.in

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Lecture Notes

UNIT 1:

Introduction: Computer System Organization, Architecture, Operation, Process Management – Memory Management – Storage Management – Operating System

Process concept – Process scheduling – Operations on processes – Cooperating processes

Inter process communication

Threads: Multi-threading Models – Threading issues.

Process Scheduling

UNIT 2:

CPU Scheduling: Scheduling criteria – Scheduling algorithms

Process Synchronization: The critical-section problem – Synchronization hardware

Deadlock: System model – Deadlock characterization

Semaphores – Classical problems of synchronization.

UNIT 3:

Memory Management: Background – Swapping – Contiguous memory allocation

Paging – Segmentation

Page replacement

UNIT 4:

File System Implementation

Allocation methods – Free-space management.

File concept: Access methods – Directory structure

UNIT 5:

Mass-Storage Structure: Disk scheduling – Disk management

Disk scheduling – Disk management

I/O Systems: I/O Hardware – Application I/O interface – Kernel I/O subsystem

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